Expose user language through DAV

Introduces the '{http://nextcloud.com/ns}language' prop that gives the
user's language

Closes #28449

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

1 files changed, 6 insertions, 0 deletions

diff --git a/apps/dav/lib/Connector/Sabre/Principal.php b/apps/dav/lib/Connector/Sabre/Principal.php
index 5e81e155d74..4a422fa9628 100644
--- a/apps/dav/lib/Connector/Sabre/Principal.php
+++ b/apps/dav/lib/Connector/Sabre/Principal.php
@@ -50,6 +50,7 @@ use OCP\IGroupManager;
 use OCP\IUser;
 use OCP\IUserManager;
 use OCP\IUserSession;
+use OCP\L10N\IFactory;
 use OCP\Share\IManager as IShareManager;
 use Sabre\DAV\Exception;
 use Sabre\DAV\PropPatch;
@@ -89,6 +90,8 @@ class Principal implements BackendInterface {
 
 	/** @var IConfig */
 	private $config;
+	/** @var IFactory */
+	private $languageFactory;
 
 	public function __construct(IUserManager $userManager,
 								IGroupManager $groupManager,
@@ -98,6 +101,7 @@ class Principal implements BackendInterface {
 								ProxyMapper $proxyMapper,
 								KnownUserService $knownUserService,
 								IConfig $config,
+								IFactory $languageFactory,
 								string $principalPrefix = 'principals/users/') {
 		$this->userManager = $userManager;
 		$this->groupManager = $groupManager;
@@ -109,6 +113,7 @@ class Principal implements BackendInterface {
 		$this->proxyMapper = $proxyMapper;
 		$this->knownUserService = $knownUserService;
 		$this->config = $config;
+		$this->languageFactory = $languageFactory;
 	}
 
 	use PrincipalProxyTrait {
@@ -508,6 +513,7 @@ class Principal implements BackendInterface {
 			'uri' => $this->principalPrefix . '/' . $userId,
 			'{DAV:}displayname' => is_null($displayName) ? $userId : $displayName,
 			'{urn:ietf:params:xml:ns:caldav}calendar-user-type' => 'INDIVIDUAL',
+			'{http://nextcloud.com/ns}language' => $this->languageFactory->getUserLanguage($user),
 		];
 
 		$email = $user->getEMailAddress();